Improvement in tacking-machines for boots and shoes



H a THOMPSON & B. F. BERGH'. Tanking-Machines for. Bob'ts and Shoes.

Patented July 14, 1874..

Winn! A iilnesses:

THE GRAPHIC ClLPNOm-Li'rusea M PAflK Mani! C UNITED STATES PATENT Orrro.

HENRY G. TEiOMPSON AND BROR F. BEECH, OF MILFORD, CONNECTICUT;

SAID BERGH ASSIGNOR TO SAID THOMPSON.

IMPROVEMENT IN TACKlNG-MACHINES FO R BOOTS AND SHOES.

Specification forming part ofLetters Patent No. 152,927, dated July 14,1674; application filed April 18, 1874.

To all whom it may concern:

Be it known that we, HENRY G. THOMP- SON and BROR F.13ERGH, of Milford,county of New Haven and State of Connecticut, have invented certain newand useful im provements in Tacking-Machine for Boots and Shoes, ofwhich the following is a specification:

Our invention relates to machines for driving tacks through the uppersor vamps of boots and shoes into theinner soles thereof; and the natureof our invention consists in afeedingcylinder revolved by means of aratchet movement; also, in the combination of ratchet for turning andcam for moving the feeding-cylinder to and from the hammer; also, in arevolving feeding cylinder, in which the front head thereof isstationary. It also consists in an apron fastened to the stationary headon the inside of the feeding-cylinder, for the purpose of filling theincline with tacks as the cylinder rotates also, in a feed device forpushing the tacks from the incline outside of the cylinder into recessesinto the indexwheel of the distributin g-cylinder also, in a distributing-cylinder for separating, holding, and delivering the tacks under thehammer 5 also, in a device for increasing or decreasing the force of theblow given by the hammer also, in a lock for lockin g the hammer, and ina cam for unlocking the same. Our invention further consists in thegeneral combination and arrangement of parts, as will be hereinaftermore fully set forth.

In order to enable others skilled in the art to which our inventionappertains to make and use the same, we will now proceed to describe'its construction and operation, referring to the annexed drawing, whichforms a part of this specification, and in which-- Figure 1 is a sideelevation, partly in section, of a tacking-machine embodying ourinvention. Fig. 2 is a plan view of the revolving cylinder, with inclineand distributing-cylinder. Fig. 3 is a longitudinal section of the samethrough the line :20 as, Fig. 2. Fig. 4 is a transverse section of thefeedingcylinder through the line 3 y, Fig. 2. Fig. 5 shows the ratchetdevice for revolving the feedroylinder. Fig. 6 shows the lockingdeviccfor the hammers. Fig. 7 shows the distributingcylinder, with theratchet for operating the same.

A represents the base of our machine, from which'rises a post orstandard, 13. The upper end of this post is curved forward, forming theupper arm C, and a horizontal arm, 0, extends from the post a suitabledistance above the base A. Through the front or outer ends of the arms CC passes the vertical hammer D, which drivesthe tacks into their places.This hammeris operatedbymeansofalever,E,which passes through, and ispivoted in, the post or standard 13 at a suitable point between the arms0 C. This lever E also operates the other parts, as will be hereinafterdescribed, and is itself operated by any suitable power, with which itis to be connected. The front end of the lever is forked, and the end ofeach prong is, by a rod or bar, G, connected with a sleeve, H, placedloosely on the hammer D. Above this sleeve, on the hammer, is anadjustable collar, a, secured by means of a set screw, 1). A suitabledistance below the sleeve H is another adjustable collar, (1, secured bymeans of a set-screw, c, and between this latter collar and the sleeveis placed a spiral spring, f, surrounding the hammer. The spring fthrows the hammer down at the proper time, and, by adjusting the bottomcollar (1, the tension of the spring f is easily regulated so as tocause the hammer to give a stronger or lighter blow, as may be requiredfor the particular kind of work being done. On the hammer D is acircumferential groove, 11, at such a point that, when the hammer israised as far as can be by the lever E, the upper collar at having firstbeen properly adjusted, said groove will be within the arm C, anddirectly opposite to a spring bolt, h, arranged within said arm, whichbolt then springs into said groove, and supports the hammer in itselevated position independent of the lever. On the upper side of thebolt h is a lug or projection, k, as shown particularly in Fig. 6,against the front side of which the lower end of a cam-lever, I, is towork, said lever being pivoted between two cars, m, on

the upper side of the arm 0, and the lower end of said lever projectingthrough an elongated slot into the arm.

Thehammer having been raised by the downward movement of the outer orrear end of the lever E, and caught by the spring-bolt h, the rear endof the lever is moved upward again, when the hammer remains sta tionary,and the spring f is compressed by the downward movement of the sleeve H,caused by the downward motion of the front end of the lever, until saidforked front end ofthe lever strikes the upper end of the cam-lever I,when this latter lever is thereby turned on its pivot, and pushes thespring-bolt h back,so as to release the hammer, and allow the compressedspring f to throw the hammer down. This operation is continued for everystroke of the lever E.

In the front end of the arm 0 is screwed a hollow screw, it, throughwhich passes a springbolt, 19, to enter the groove 6 on the hammer andhold the same stationary, independent of the bolt It just described. Thebolt 1) is to be used in setting the hammer and regulating the springf.Through the lever E, at a suitable point back of the standard B, passesa pin, 1',

which pin passes through inclined or cam slots 8 in the upper ends oftwo levers, J J, pivoted to a projection on the back of said standard,and extending up, one on each side of the lever E. In the lower ends ofthe levers J J is hung a nut, 11, upon journals, and in the same isscrewed a rod, to. This rod 20 passes forward through a hole in the backof the post B, and into a recess made in the same from the frontbackward, and the front end of the rod is made fast in the rear end ofan inclined bar, K, which passes through and is permanently attached tothe front head L of the feeding-cylinder. The feeding-cylinderconsistsof this front head L, a rear head, M, and the cylindrical bodyor shell N. The body or shell N and the rear head M are either made inone piece or permanently united together, and on the rear face of thefront head L is a circular shoulder or offset, a, over which the frontend of the shell N fits, butis not attached thereto; so that the rearhead and shell of the feeding-cylinder may be revolved while the fronthead remains stationary. On the back of the rear head M is formed a hub,in which is inserted a spring-pawl, y. This pawl engages withratchet-teeth 2 formed upon the front end of a sleeve, 0, which isplaced upon the rod to, and held against the hub on the head M by meansof a rubber or other spring, a, between two washers, d, on the rod 10,and these held by a pin, 'b, passing through said rod. In the under sideof the sleeve 0 is a spiral groove, f, into which enters a pin or lug,e, projecting upward from the bottom of the recess in the post orstandard B. As the lever E is moved down, the pin r passing downward inthe cam-slots s forces the lower ends of the levers J J forward,carrying the rod 20 and entire feeding-cylinder forward. This forwardmotion turns the ratchet-sleeve 0 around backward a short distance, bymeans of the lug e and spiral groove f and as the lever E is raised thefeeding-cylinder is drawn back by the levers J J ,and during thismovement the ratchet-sleeve O is revolved in the opposite direction,thereby rotating the part M N of the feeding-cylinder. This rotation ofthe cylinder is for the purpose of carrying up the tacks containedtherein, which is done by means of wings or buckets h attached to theinner side of the shell N. These wings or buckets carry up the tacks anddeposit them on an apron, t", attached on the inner side of thestationary head L, which apron fills a longitudinal groove, is, in' theincline K with tacks, and prevents obstructions as the tacks pass downsaid incline through the cylinderhead. The inclined grooved bar K,whichis attached to the stationary-head L, extends a' suitable distance infront thereof, and has a bar or red, P, pivoted to it on each side, and

the upper ends of said bars or rods are pivoted to the ears on m on thearm a by the same bolt which pivots the cam-lever I, and thus supportsthe front part of the entire feeding mechanism. To further support thesame and prevent undue strain on the pivot-bolts, the heads of the boltswhich pivot the rods 1 to the incline K rest and move upon guides R,attached to the base A, said guides also directing the backward andforward movement of the feeding mechanism.

Through aslot inthe head L passes a bar, m, the inner end of which ispivoted to said head, and the outer portion is provided with adovetailed groove, in which is placed a slide, a, and to this slide isattached a piece, 0, of leather or other suitable material, that isdirectly above the channel It in the incline K. The slide n is providedon its rear side with a pin, 10, projecting through a slot in the bar mand over said pin is placed the forked lower end of a lever, 1', whichis pivoted to a projection upon the bar m, and its upper end by a rod,8, connected with the arm 0 of the main frame.

This constitutes the device for'feeding the tacks from the incline by aparallel motion to the distributing cylinder, and it operates asfollows: At the moment when the feedingcylinder commences its backwardmovement the feeding device is in the position shown in Fig.3, andduring the backward movement the slide a with the leather 0 is movedbackward in the grooved arm m, and, as the feeding cylinder completesits backward movement, the feeding device descends until the leather 0rests upon the heads of the tacks in the channel It. Then, during theforward movement of the feeding-cylinder, the leather 0 and the slide amove forward parallel with the incline, and move or feed one tack intothe distributing-cylinder, and, as the forward movement of thefeeding-cylinder is completed.

" in the front of the distributing'cylinder.

the feeding device ascends to itsoriginal position. S represents thevertical feeding-cylinder attached to, or'formed on, the front end ofthe incline K. This cylinder is open at the top, and therein is inserteda horizontal indexplate, T, having notches in its edge at regularintervals, as shown in Fig. 2. The indexplate T is held by a centralbolt, t, and supported by a spring, v, as shown in Fig. 7, the boltbeing so made that the index-plate must revolve with it. Upon the bolt tbelow the cylinder S is firmly secured'a ratchet-wheel, 10', into whichtakes a spring-pawl, w. This pawl is pivoted upon one end of a lever, 3which is placed loosely upon the hub of the ratchet-wheel, and its otherend held in a forked pin, 2, which is placed looselyin the lower hollowend of a post, W, screwed into the arm G of the main frame. It willreadily be seen that by the movement back and forth of the entirefeeding apparatus the ratchet w m is operated, and it turns theindex-plate T during the forward movement of the feeding apparatus, soas to bring one notch in position against the taclcchannel k, andanother notch with a tack therein opposite a slot, 60 If a magnetizedhammer is used the tack thus brought opposite the slot a will be at onceattracted to the end thereof, but if any other hammer is used somesuitable device will be employed to take the tack from thedistributing-cylinder. The shell N of the feeding-cylinder is providedwith a suitable aperture for the admission of the tacks, which aperturemay be closed by means of a band, N, encircling'said shell, and whichband has a corresponding aperture, as shown in Fig. 4.

Having thus fully described our invention, what we claim as new, anddesire to secure by Letters Patent, is-

1. The combination, with a tack-driving mechanism, of the feed-cylinderM, revolved by means of a ratchet movement, substantially as herein setforth.

2. In a tack-driving machine employing a hammer for driving the tacks,the combination of a ratchet for rotating, and cam for vibrating, thefeed-cylinder, provided with a stationary head, substantially as hereinset forth.

3. In a tack-driving machine a revolving feed-cylinder, provided with astationary head at its front end, substantially as herein set forth.

4. The combination of the stationary head L, with incline K, revolvinghead M, and shell N, ratchet device 0 y 2, rod to, and cam-levers J J,all constructed substantially as and for the purposes herein set forth.a

5. The apron 6 attached to the inner side of the stationary head 'L ofthe revolving feedcylinder, for the purposes herein set forth.

6. I11 combination with the incline K, having the tack-channel k, afeeding'mechanism, having a motion parallel thereto, substantially asherein set forth.

'7. The combination of the bar m, slide a, with leather 0 and pin 1),the forked lever r and connecting-rod s, substantially as and for thepurposes herein set forth.

8. In a tack-driving machine, the combination, with a revolvingfeeding-cylinder, of a distributing -cylinder for separating, holding,and delivering the tacks under the hammer, substantially as herein setforth.

9. The combination, in a tack-driving machine, of adistributing-cylinder operated by a ratchet movement, and a parallelfeed motion, substantially as herein set forth.

10. The combination, with the hammer D,

having circumferential groove i, of the sleeve H, spring f, andadjustable collar (1, for the purposes herein set forth.

11. The spring-bolt h, in combination with the circumferential groove iin the hammer D, for the purposes herein set forth.

12. The combination, with the spring-bolt 71., of the cam-leverI, andoperating lever E, substantially as and for the purposes herein setforth.

' In testimony that we claim the foregoing as our invention We hereuntoaffix our signatures this 2d day of April, 1874.

HENRY e. THOMPSON. n. F. nnnen.

\Vitnesses:

FRANK L. ALLIs, P. S. BRISTOL.

